Home / 2,769.05-3,821.37-1,590.20

Finding the Fourth Proportional to 2,769.05, 3,821.37 and 1,590.20

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Solution

The fourth proportional to 2,769.05, 3,821.37 and 1,590.20 is: 2,194.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.05 : 3,821.37 = 1,590.20 : x
  2. Step 2: Convert to fraction form
    2,769.05/3,821.37 = 1,590.20/x
  3. Step 3: Cross multiply
    2,769.05x = 3,821.37 × 1,590.20
  4. Step 4: Simplify right side
    2,769.05x = 6,076,731.83
  5. Step 5: Solve for x
    x = 6,076,731.83/2,769.05
  6. Step 6: Final answer
    x = 2,194.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.